NEUTRINO INTERACTIONS AT NUCLEAR-REACTORS

Recent neutrino interaction experiments at nuclear reactors are reviewed. The high statistics study of <(nu)over bar>(e) interaction with protons at small distances allow one to test our understanding of the reactor source; the accuracy in the integrated <(nu)over bar>(e) flux of 2% was achieved at present. I briefly review the experiments on the <(nu)over bar>(e) interaction with deuterons and on the neutrino decay, and concentrate on the <(nu)over bar>(e) interaction with protons, the reaction most suitable to test the electron antineutrino disappearance channel. While the present limit of Delta m(2) at full mixing are at the 10(-2) eV(2) level, experiments planned at San Onofre and Chooz will push the sensitivity to 10(-3) eV(2), fully excluding or confirming the nu(mu) --> nu(e) oscillation hypothesis of the atmospheric neutrino anomaly. The <(nu)over bar>(e) scattering on electrons is sensitive to the neutrino magnetic moments. The MUNU experiment, now in preparation, will push its upper limit to 2-3.10(-11) Bohr magnetons.